Materials panel of FLUENT

vismayie · February 21, 2013, 09:52

Hello,

I have an udf for the reaction rate and since the udf uses the materials it is required that we should define the materials also in the same order. But to define materials it is required that we select the species transport option and once we select that option, air mixture gets selected by default and this leads to a number of extra species and I am not able to figure out how to get rid of these species and how to define species in the same order as that used in the udf.

I hope i am clear in asking the doubt.

Thanking you,
V.Vismayie

msaeedsadeghi · February 23, 2013, 04:16

You should inlet it in the mixture material by the numbered in your UDF.
I have done that before.

vismayie · February 23, 2013, 07:14

Dear Saeed,
I am sorry to say this but I haven't understood whatever you said.
My problem actually is that the default air mixture is there in the materials panel and i dont know how to get rid of it.

We should select species transport option before we define materials rite . so when i do that air which is the default gets selected.
Could you please suggest me a way out

msaeedsadeghi · February 23, 2013, 08:33

I really don't know how to explain it

Enter species in the mixture panel. Species ID starts from zero. the first one is zero. Check if the last one be N2.

vismayie · February 23, 2013, 08:49

hey,

I understood . I ran my simulation and it is working rite.

Thanks a ton !

Vismayie

February 21, 2013, 09:52	Materials panel of FLUENT	#1
vismayie New Member Andhra Pradesh Join Date: Jan 2013 Posts: 13 Rep Power: 13	Hello, I have an udf for the reaction rate and since the udf uses the materials it is required that we should define the materials also in the same order. But to define materials it is required that we select the species transport option and once we select that option, air mixture gets selected by default and this leads to a number of extra species and I am not able to figure out how to get rid of these species and how to define species in the same order as that used in the udf. I hope i am clear in asking the doubt. Thanking you, V.Vismayie

February 23, 2013, 08:49		#5
vismayie New Member Andhra Pradesh Join Date: Jan 2013 Posts: 13 Rep Power: 13	hey, I understood . I ran my simulation and it is working rite. Thanks a ton ! Vismayie msaeedsadeghi likes this.

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February 23, 2013, 04:16		#2
msaeedsadeghi Senior Member SSL Join Date: Oct 2012 Posts: 226 Rep Power: 15	You should inlet it in the mixture material by the numbered in your UDF. I have done that before.

February 23, 2013, 07:14		#3
vismayie New Member Andhra Pradesh Join Date: Jan 2013 Posts: 13 Rep Power: 13	Dear Saeed, I am sorry to say this but I haven't understood whatever you said. My problem actually is that the default air mixture is there in the materials panel and i dont know how to get rid of it. We should select species transport option before we define materials rite . so when i do that air which is the default gets selected. Could you please suggest me a way out

February 23, 2013, 08:33		#4
msaeedsadeghi Senior Member SSL Join Date: Oct 2012 Posts: 226 Rep Power: 15	I really don't know how to explain it Enter species in the mixture panel. Species ID starts from zero. the first one is zero. Check if the last one be N2.